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P. Cargile, Y. Gomez Maqueo Chew, K. G. Stassun (Vanderbilt University), R. D. Mathieu (U. Wisconsin), L.P.R. Vaz (Universidade Federal de Minas Gerais, Brazil)
We present radial velocities and light curves for a new low-mass eclipsing binary system in the Orion star-forming region. Our observations include VIJK light curves obtained with the 1.3m SMARTS telescope at CTIO, and radial velocities obtained with the High Resolution Spectrograph on HET.
These spectroscopic and photometric data will permit the determination of precise masses, radii, temperatures, and luminosities for both components of the system. The system is a likely member of the Orion Nebula Cluster, and therefore has an age of only a few million years. This newly discovered system is thus of particular interest because it includes two low-mass stars which will provide useful constraints for testing the predictions of current theoretical models of pre-main-sequence stellar evolution.
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.